In 2014 he published a new theory on fundamental physics based on postulates from ancient Greek atomism, in his book Unified Revolution: New Fundamental Physics. From atomism Haug has derived a new relativity theory that he has coined Indivisible Relativity Theory, where he claims Einstein´s special relativity theory is a special case that holds under Einstein synchronized clocks. Indivisible relativity theory predicts that the true one-way speed of light is anisotropic and that it only can be detected by special experimental set ups described in his book. Further indivisible relativity theory predicts that the true one-way time dilation is anisotropic and not reciprocal between reference frames. However indivisible relativity theory shows that when using Einstein synchronisation of clocks one will indeed observe apparent isotropic one-way time dilation that is reciprocal between reference frames. Indivisible relativity theory leads to the same mathematical relationship between energy and matter as first derived by Albert Einstein, but from a new and different perspective rooted in ancient atomism.